WP 2.1 pictures 24/04/2017 Charlotte Le Traon WP 2.1 : Hydrogravimetry Task 2.1 superconducting gravimeter The portable spring gravimeter Scintrex CG5-M measuring gravity close to a borehole on the Strengbach watershed in the Vosges. One of the three GWR Instruments Inc. iGrav superconducting gravimeters installed in the Strasbourg Gravimetric Observatory for a test period in 2016. Images